THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
Effective: 01/01/08
7-21
D. Elevate the left wing and place it in
position. Place a ½” aluminum or
phenolic spacer between the
fuselage longeron and the lower spar
cap. Butt the wing attach angle
squarely against the fuselage vertical
wing attach tube assembly. Locate
the rear spar fitting into the fuselage
attach fitting and install the 7/8” bolt,
AN960 washers and MS21044N nut.
Bring nut up snug but not to final
torque.
E. Support the wing at the wing jack
point on the front spar, approximately
8 feet inboard of the wing tip, and
under the inboard end rib.
F. Rest the inboard end of the main
spar on the lower longeron with a ½
inch temporary spacer between.
G. Install the left wing inboard attach
angle on the main spar web with ¼
inch NAS bolts, AN960 and
MS20002C washers and MS21042
locknuts (See Figure 7-13). Torque
the locknuts per Table 7-3, 6 places.
H. Align the bolt holes in the wing attach
angles with the bushings in the
fuselage vertical wing attach tube.
Install one 5/16” AN bolt in the top
hole and secure with an AN960
washer and AN365 locknut. Install
locknut finger tight.
Figure 7-12: Wing Spar Splice
I. On the right wing, install the
outboard wing attach angle on the
main spar web with ¼ inch NAS
bolts, AN960, and MS2002C
washers, and MS21042 locknuts.
Torque the nuts per Table 7-3, 6
places.
